Fluid feeding device



NV- 24 1936- c. J. EAcocK ET AL FLUID FEEDING DEVICE Filed June 22, 1933 3 Sheets-Sheet l lin Nov. 24, 1936. c. .1. EAcocK ET Al.

` FLUID FEEDING DEVICE Filed June 22. 1933 3 Sheets-Sheetl 2 Nov. 24, 1936. c. J. EAcocK ET AL FLUID FEEDING DEVICE Filed June 22, 1933 4I5 Sheets-Sheet 3 l SQ /m mw Patented Nov. 24, 1936 PATENT OFFICE FLUID FEEDING DEVICE Pasadena, Calif.

Applicatinsune 22. 1933, seria1No. 677,092

17 Claims.

This invention relates to improvements in uid feeding devices, and more particularly to means for feeding fluid, such as a lubricating medium, under pressure automatically in substantially direct proportion to the movement of the operating parts of a member with which the device is associated, and this application is a continuation-npart of the application of Charles J. Eacock and Claude H. Clauser for patent on Metering fluid feeding devices Serial No. 310,899, filed October 6, 1928, now Patent No. 1,940,793, patented December 26, 1933.

It isa purpose of this invention Vto provide fluid feeding means that is adapted for use in feeding any `fluid in measured quantities controlled by the movement of certain cooperating parts, but is particularly adapted for use as a lubricating device, and Whichis so constructed as to economize on the amount of lubricating fluid dispensed to each of the parts to be lubricated by supplying the proper amount of lubricant to the parts, but not a needless excess.

It is a further purpose of this invention to provide a device of the above mentioned character which is simple in construction and can be made at relatively small cost. While several specific forms of this invention are shown and described herein, the principle of operation of all thereof is the same, the differences between the various forms being largely in the cost of production thereof, certain forms being simpler and less expensive, while not as mathematically accurate, whereas other forms are somewhat more complex, but capable of the most exact metering in exact proportion of the movement of the operating parts. it will be obvious that it Will be unnecessary to use such absolutely accurate metering i where the movement of the parts is relatively more complex construction of the device, all forms of the invention are of a comparatively simple construction, which is strong and durable and all forms of the invention are automatic in operation,

feeding or supplying lubricant or other fluid proportionately to the movement of the parts of the mechanism with which the same is associated.

It is a further purpose of this invention to pro.

vide new and improved means for producing the l feeding movements of the feeding member proportionately to the movement of the parts to which lubricant is fed, which comprises one-way clutch mechanism. The feeding member preferably has a reciprocatory movement, and the means for producing this movement is so constructed as to produce a measured movement of the feeding member in proportion to the movement of the parts with which the device is associated, and said means is positively driven in one direction by even a small movement of the parts to produce a corresponding movement of the actuating mechanism. The clutch mechanism is simple in construction and is so made that the parts thereof can be simply and cheaply made.

The novel actuating mechanism for the feeding member comprises a member that is rotatable only in one direction, which, in one form of the invention is shown as being a rotatable member cooperating vvith a stationary cam, and in another form of the invention as being a rotatable cam cooperating With a stationary member on which said cam acts. The means for rotating said rotatable member in only one direction comprises an oscillating clutch member, which moves the rotatable member in one direction of its movement, but moves individually of said rotatable member when rotating in the opposite direction, and a holding member that prevents the reverse rotation of the rotatable member with the oscillating clutch member. Preferably the holding member is also a one-way clutch device operating in a reverse direction to the driving clutch. The holding clutch member is stationary, while the oscillating clutch member moves with the movable part of the device with which the feeding device is associated.

The one-way clutch members are similar in construction, but operate reversely, and while an expanding coil spring clutch device is preferable in the simplest and cheapest form of the invention, a double ball clutch device is preferable where great accuracy is required. In the case of the expansible resilient clutch device the same comprises a resilient coiled member made up of two coiled parts and a connecting portion, the coiled parts being oppositely wound and the one coil member acting as a gripping or clutch member for driving movement, and the other oppositely wound coil member acting as a gripping or clutch member for holding the parts against movement in the reverse direction. The ball clutch members used in the more extremely accurate form of the invention are similar in construction and each comprises a disk-like member having cam or wedging faces thereon,

and a disk-like annular member embracing said Vmember having the cam or wedging faces thereon and balls confined between said annular and cam faced members to Wedge therebetween to cause the parts to move together or to be held from movement as desired.

The fluid feeding means is designed to feed the iluid at a very high pressure, the action being obtained by means of -a spring cooperating with the cam member to produce a snap action of the feeding member in a feeding direction, the feeding member being of relatively small cross section, whereby a relatively strong spring of relatively large size is adapted to apply a relatively high pressure per square inch elfective on the face of the feeding member operating on the fluid.

The rotatable means, whether a cam or a member cooperating with a cam which rotates in only one direction, 'acts to produce a return movement of the reciprocatory feeding member against the action of thespring, and the cam is so shaped that the part'cooperating therewith drops off the abrupt shoulder on the cam to produce the feeding movement by snap action due to the sudden expansion of the spring, which has been gradually compressed during the rotation of the controlling means for the feeding member, which has been actuated by the one-Way clutch device,I and the movement of the feeding member in a return direction willv bein proportion to the movement of the parts to which lubricant is fed due to the'provision of the one-way driving clutch rotatable member that serves to control the frequency of the feeding strokes of the feeding plunger.

It is a further purpose of this invention to provide a device of the above mentioned character which is made of a small number of relatively small parts, which are so constructed that l55- Vwill appear asthe description of the drawings Ythe same will operate reliably and yet the entire device will be very compactr and small for ordinary purposes requiring little if any more space i thanl fittings of lubricating devices now in use,

which are notV automatic in operation. The fluid feeding devicesv are` adapted for use either individually or in a series fed from a central reservoir, the pumpingl or feeding mechanism being thesame for the devices, no matter how the fluid is suppliedjto the chamber in each thereof from which it is fed at'high pressurev into the bearing or other part that is to be lubricated.

`^ Other objects and advantages-o1" this invention a. of the devices shown in Fig. l.

f Fig.' 3 is a longitudinal sectionalview through one of the feeding devices, fragmentary portions of ay pipe line being shown associated therewith andthe ball valve, plunger, cross bar, and springs associated with'the ball valve and plunger being shown in elevation.

Fig. 4 is a section taken on the line 4-4 of Fig. 3, the plunger, ball and springs being shown in elevation and the parts being shown in a different position than that shown in Fig. 3.

Fig. 5 is a section taken on the line 5 5 of Fig. 3.

Fig. 6 is a section taken on the line 6-6 of Fig. 3.

Fig. '7 is a section taken on the line 'l--l of Fig. 3.

Fig. 8 is an end elevation of the resilient clutch member.

Fig. 9 is a side elevation thereof.

Fig. 10 is a view partly in elevation and partly in section of the plunger and cross bar associated therewith.

Fig. 11 is a view partly in elevation and partly in section taken on the line I l-I I of Fig. 10.

Fig. 12 is a view similar to Fig. 3 of a slightly modified device showing a double ball-clutch mechanism incorporated in the device.

Fig. 13 is a section taken on the line lit-I3 of Fig. 12.

Fig. 14 is a section taken on the line lll-I4 of Fig. 12.

Fig. 15 is a section taken on the line Iii-I5 of Fig. 12.

Fig. 16 is a view similar to Fig. 3 of a further modication, utilizing a single ball-clutch.

Fig. 1'7 is a view similar to Fig. 3 of a modication oi' the device in which the double ballclutch is utilized, and the cam rotates instead of being stationary.

Fig. 18 is a section taken on the line IB-IB of Fig. 1'7.

Fig. 19 is a section taken on the line i9-I9 of Fig. 17, and

Fig. 20 is a section taken on the line 2li-20 of Fig. 16.

Referring in detail to the drawings, in Fig. 1 is shown a feeding member having a housing 2l and a base portion 22, the base portion being connected with a screw threaded opening in a ange 23 provided on a shaft 24 on which a rank member 25 is mounted to rotate therewith, said shaft oscillating in a bearing 26 mounted on a frame member 2l and a lubricant passage 28 leading to the bearing 26. A pipe line having the conduit portions 29 and 36 leading respectively into the housing 2| and the base member 22 is shown in Fig. 1, the conduit portion 29 being preferably fixed to the frame by any suitable securing means 3l. 'Ihe feeding member having the housing portion 2l and the base portion 22 is shown more in detail in Figs. 3 to 9 inclusive.

The base portion 22 is provided with an externally screw threaded nipple portion 32, which is adapted to be threaded into a Suitable threaded opening in a bearing, shaft, or any other device that is provided with a lubricant passage to which lubricant is to be fed. Said base portion is provided with a valve chamber 33 within which a coil spring 34 is mounted, which presses the ball valve 35 against a suitable annular seat 36 provided at the junction of the valve chamber 33 and the plunger receiving passage 37. The spring is held in position in engagement with the ball valve 35 in compressed position by crimping over the material of the externally screw threaded nipple 32, as indicated at 38.

The base portion 22 is provided with a passage 39 intersecting the passage 31 and has a passage 40 leading to the passage 39 from a chamber formed between the housing portion 2| and the base portion 22. While obviously any suitable means could be provided for feeding lubricant into this chamber and thus to the passage 39, and a supply of lubricant could be maintained Vin said chamber whether or not a pipe line were provided leading to said chamber, by manually lilling the chamber at stated intervals, the form `of the invention illustrated shows the feeding i `member interposed in a pipe line supplying lubricant from any suitable reservoir, the pipe or conduit 35 being screw threadedly received in an internally threaded opening 4| in the base member 22 which communicates with the passage 39, and the externally screw threaded portion of the pipe or conduit 25 being received in an internally screw threaded nipple 42 provided on the housing portion 2|.

It will be noted that the passage 40 is sector shaped, this shape being used in order to obtain a relatively large cross sectional capacity for the passage without reducing the thickness of the wall of the base member to tool great an extent. The parts are shown very much enlarged Vin Figs. 3 to 9 inclusive, being approximately three times the actual size, and inasmuch as the devices are so small it is desirable to utilize such a passage to maintain the outer wall portion `thereof of such a size as to be ample for the necessary strength of the parts. Substantially concentrically arranged with the arcuate passage 46 is a plunger guide passage 43, in which a plunger rod 44 is slidably tted for reciprocating motion, said plunger rod being adapted to be projected into the passage 3l from the position shown in Fig.'4 to that shown in Fig. 3.

The base member is provided with an annular groove 45 therein receiving a compressible gasket member 45, which is also seated in an annular groove 4"! in the housing or cap member 2|, the gasket member being preferably split as shown at 46 in Fig. 6, to simplify the assembly of the same in the groove 45. The gasket member 46 is rotatable in the groove 45, but is clamped in position'in the groove 4l, the annular inturned ange portion 49 on the housing or cap member being crimped around the gasket to hold it firmly in place and to provide a tight joint between said `opposite inclined cam portions D, which rise gradually from a low point to a high point defined by an abrupt shoulder 5|, there being a pair of such shoulders on the cam diametrically opposite each other and the cam being inclined upwardly in a clockwise direction.

Cooperating with the cam member is a follower f in the form of a cross bar 52, which is mounted on the plunger rod 44 and which is substantially channel-shaped in cross section, and has a boxlike portion, as shown in Fig. 11, and which has anopening 53 therein, through which the plunger rod 44 extends, said plunger rod having a head 54 formed thereon, which is mounted inside the substantially square passage in the box-like portion of the member 52, and which is formed by flattening the plunger rod 44 on `opposite sides thereof so as to provide a ilat narrow head portion thereon. The closing wall 55 of the bar 52 extends only a short distance beyond the head 54 so as to prevent any endwise movement of the plunger 44 relative to said bar 52 and to provide a bearing member for the coil compression spring 56 of relatively large capacity, which is mounted between the closed end wall 51 of the housing and said follower 52, a shallow socket 58 being provided in the head 5l for seating the end coil of the spring 56. The side walls of the cross bar 52 are provided with a tapering extension 56, one of which serves as a driving nger for rotating the follower 52 and moving it along the inclined surface of the cam members 50.

Means is provided for driving the follower 52 by means of the housing member 2| so that the follower 52 will rotate with the housing member 2| in one direction, but will not rotate therewith in the opposite direction, but will remain stationary with the base member 22 while the housing member 2| is rotatimT in such opposite direction. This means comprises a one-way clutch mechanism for driving, and a one-way clutch mechanism for holding the member 52 from reverse rotation, but said one-way clutch members are incorporated in a single unit, which comprises an expansible coiled, resilient portion 66 and an expansible, coiled, resilient portion 6| connected by means of a substantially U-shaped open looped portion 62, the U-shaped portion 62 being in engagement with the extension 59 on the follower 52. The turns of the coiled portion B0 are seated in a chamber in the housing member 2|, which has a cylindrical concave wall portion 63, with which the coils of the member 66 are in slight frictional engagement when the spring formed by the coils 6i) is in normal condition. The spring portion 66 is so wound that when the housing member 2| is rotated in a clock-Wise direction relative to the base member 22, the engagement of the end coil of the spring frictionally with the shoulder 64 provided between the socket portion 58 and the chamber having the wall portion 63, and particularly the frictional engagement of the various coils with the curved wall 63 will cause the coils of the expanding resilient clutch portion 6i) to enlarge or increase in diameter, causing said clutch member to firmly grip the wall portion 63 and to rotate in unison with the housing portion 2 thus carrying the entire coiled portion 66 around in a clockwise direction with the housing portion 2| and the U-shaped connecting portion 62 therewith, which, being in engagement with the extension 59 on the follower 52 will carry the follower 52 along with it in a clock-wise direction along the inclined cam faces 50. This will continue as long as clockwise rotation of the member 2| relative to the member 22 takes place.

Due to the fact that the coiled portion 6| of the clutch unit is coiled in the opposite direction, it will be reduced in diameter due to the rotation of the housing 2| relative to the base portion 22 in a clockwise direction and will rotate freely in the concave cylindrical wall portion 55 provided in the chamber for receiving said coiled portion 6| in the end of the base member 22 confined in the housing 2|, endwise beyond the cam with which the follower 52 engages, there being a shoulder 66 provided between the cam portion formed on the member 22 and the spring clutch receiving chamber therein, with which the end coil of the expanding resilient clutch portion 6| engages.

Upon reverse rotation in a counter-clockwise direction of the housing member 2| relative to the `base member 22, there might be a tendency of the resilient clutch member 60 to rotate therewithV in said counter-clockwise direction. Such Vrotation and consequent reverse rotation of the followerbz, is, however, prevented by the one- VVwayholding clutch provided by the expanding coiled vresilient clutch member 6I', which, upon any tendency of the unit to rotate 1n a counterclockwise direction will expand against the wall 65, rmly gripping the same and preventing any rotation of the unit in a counter-clockwise direction with the housing portion 2 l. As soon as such .gripping of the coiled resilient clutch member r effect on the mechanism controlled by the clutch,

the parts being ready to resume the driving of the Vfollower 52-upon clockwise rotation of the housing 2l relative to the base member 22.

It willbe understood that thus the oscillations ofthe member 2l relative to the member 22 and .the oscillations of the shaft Z4 in the bearing 2B, for example, or any other two relatively movable parts, will cause a rotation always in the same direction of the follower or cross bar 52 in proportion to the movement of the parts with which the apparatus associated, and to which it supplies a fluid, such asa lubricant, and that when `a predetermined amount of movement of the member 52 has taken place, it will drop o the abrupt shoulders 5l on the cam members 59, causing theA spring, which has been compressed as the member 52 has ridden l,up the inclined fac-es of the cam members 55, to project the plunger M. by snap action into the passage 3i, compressing the lubricant therein and forcing it to unseat the ball valve 35 and passing it at high pressure into the valve chamber 33 and thus into the Aoil passage 2B leading to the bearing that the device` is to lubricate. It is, of course, understood thatthe hollowy nipple l2-has. a passagethat connects with the passage 69 leading into the chamber lil formed between the base member 22 and the housing 2l, which acts as a lubricant reservoir or' chamber .and with which .the passage :33' connects to supply lubricant to Ymechanism, which is substantially 'the same as previously described and bears the same reference numerals; the valve chamber and the bore Ymanner to that of the' plunger rod dll.

or cylinder portion 37 leading into the same being made in substantially the same manner and being related to each other in the same manner section, and the plunger rod iid" is provided with Wings 'H thereon that are formed by flattening portions of said plunger rod 44' for the purpose of holding the plunger rod assembled with the follower 52', and the follower 52 is provided with a transverse wall portion "l2 acting as a bearing member against which the compression spring 56 engages, the spring 55 shown in Fig. 12 being similar to the spring 56 shown in Fig. 3 and serving a similar purpose, as will become apparent as the description proceeds. The follower 52' is further provided with an extension or wing portion 'I3 similar to the extension 59 on the follower 52. The follower 52 further cooperates with the cam on the base member 22', said cam being constructed in the same manner as that shown in Fig. 3 and the same numerals are applied thereto.

The housing member 2l embraces the base member 22 in a similar manner to that in which the housing 2i embraces the base member 22, and a gasket member i6 is provided for sealing the joint between the housing and base members in the same manner as shown in Fig. 3. The driving means for the follower 52' mounted in the housing portion 2l is, however, quite different from that shown in Fig. 3 for driving the follower 52 always in one direction. Said driving mechanism comprises a double ball clutch mechanism, one ball clutch device being used for driving the follower 52 in a clockwise direction relative to the cam portions provided on the base 22, and the other ball clutch member being provided to hold said follower from reverse movement relative to the base member 22'.

The double ball-clutch mechanism comprises the inner disk members 'I and l5, between which are mounted a ball retaining thin sheet metal disk 15, there being also a sheet metal ball retaining disk ll provided between the head 'i8 on the tubular rivet-like member 'i9 and the member ld, and there being a sheet metal disklike member 8i) provided between the head or flange 8l formed by upsetting the tubular end of the rivet 19 and the disk member l5, said disk member 80 having an ear or extension 32 thereon, which acts as a linger engaging with the finger or extension 'i3 on the follower 52. The members '51, "M, 16, "i5 and 89 .are thus all secured together to rotate as a unit with the tubular rivet 19.

A ring-like member 83 is mounted in a socket portion provid-ed adjacent the closed end wall 84 of the housing member?! I being mounted in the same so as to rotate with the housing member 2 i. The ring 33 is angular in cross section, having an annular fiange 85 on the same surrounding the circular opening provi-ded in the ring. A plurality of balls 86 is mounted between said flange 85 and cam faces Si provided on the periphery of the disk 14, there being outward extensions or lugs 88 on the disk 14 between the cam portions to serve as abutments for the compression springs 89, which tend to force the ball members toward the narrow portions of the passages formed between the cam members 8l and the flange 85, said extensions 88 being spaced .slightly from the flange 85 so as to permit free rotation of the member 14 relative to the ring 83 when this is desired.

It will be seen that when the ring 83 is rotated in a clockwise direction relative to the base member 22 as viewed in Fig. 13, the tendency will be for this rotation of the ring 83 along with the housing member 2l to crowd the balls 86 into the narrow portions of the passages between the cams 81 and the flange 85, thus wedging the to be rotated in a clockwise direction with the ring 83, and thus carry the nger 82 along therewith, and also the follower 52 through the finger or extension 13, which is inengagement with the finger 82. `Any reverse rotation of the member 2| relative to the member 22 would tend to cause the balls 86 to move to the wider portions of the passages between the cam faces 01 and the flange 35, thus releasing the grip of the balls on themember 1,4 and causing the member 14 to remain stationary with the member 22 instead of moving with the member 2|.

To assure such release of the member 14 and prevent any reverse rotation of. the follower 52', a secondhball clutch; mechanism is provided, which Vcomprises the disk-like member 15 having the `cam faces 90. thereon, which are inclined in the same directionasthe cam faces 81 and having the ears or projections 9| interposed between the cam faces to serve as abutments for the springs 92, which tend to crowd the balls 93 toward the narrowerportions of the passages provided between the cam faces 90 and the inner face of the cylindrical ring-like member 94, which is mounted between, the cylindrical extension 95 on the base member 22 and the member 15, and is fixed on the extension. Any tendency of the housing member 24|' in its counter-clockwise rotation to carry the member 14 and thus the member 15 along with it in a counter-clockwise direction will cause the balls 93 to wedge in the narrower portions ofthe passages between the cam faces 90:` and the ring 94 thus holding the member 15, and thus the follower 52', from counter-clockwise rotation relative to the base portion 22'.

The housing portion 2|' is provided with an externally threaded nipple 9B projecting therefrom for connection of a conduit therewith, there being a passage 91 provided leading from this nipple into the interior of the housing and the cylindrical wall portion 95 having openings 08 therein leading into the chamber 99 provided within the same, which communicates with the passage 40. The type of device shown in Figs. 12, 13, 14 and 15 is preferably used where a very small amount of movement of the parts with which the fluid feeding device .is associated occurs under normal conditions and such a feeding device having the housing portion 2| and the base portion 22 is shown in Fig. 1 as associated with the shackle bolt |00, which has a lubricant passage therein leading to the bearing portion |02 provided on the end of. the spring |03, the conduit portion 30 leading to the base portion 22 and a conduit portion |04 leading from the housing portion 2|' and being secured to the spring |03 by any suitable clamping means |05 so as to be fixed relative to the spring. The housing 2| is thus fixed relative to the spring, whereas the base portion 22 is fixed relative to the shaft or shackle bolt |00. It will be obvious that the clutch mechanism described will rotate the member 52 always in the same direction in unison with movements of the housing member 2| relative to the base member 22' in a clockwise direction only, and that the movement of said follower or cross bar 52 along the cam will be in proportion to the oscillating movement of the spring relative to the shackle bolt or any other two parts with which the fluid feeding device is associated, It will also be apparent that the follower in cooperation with the cam and the spring will produce feeding strokes by snap action of the plunger rod 44 in a manner such as that previously described in connection with Figs. 3 to 11, inclusive.

In Figs. 16 and 20 a further modification of. the invention is shown, which provides a simplied structure, as compared with that shown in Figs. 12 to 15 inclusive, one of the ball-clutch members being omitted. The base portion 22" is made substantially in the same manner as previously described in connection with Figs 12 to 15, the same reference numerals being applied to corresponding parts in Figs. 12, 13, 14, 15, 16 and E0. Instead of providing the inturned flange 38 for holding the spring 34 in position in Fig. 16, a cross pin E06 is shown-in the valve chamber 33.

The cam member 50 is made in substantially the same manner as previouslydescribed, having the abrupt shoulder 5| thereon, and the housing or cap portion of the device is made in the form of a sheet metal cap member |01, which has an outwardly offset portion |08 along the peripheral edge thereof, which embraces the gasket member 46 and clamps the gasket member in fixed position on the sheet metal cap member |01, said sheet metal cap member having a curved end wall |09 and having a nipple ||0 formed thereon in which a tubular member is xed in liquid-tight relation in any desired manner. Mounted in the cap member so as to be fixed in position therein is a ring-like member H2, which cooperates with the cam member 14 made in the Same manner as previously described, the member ||2 taking the place .of the ring 83 and the balls 86 being mounted between the ring member ||2 and the cam faces provided on the cam member 14, said cam member being made substantially as shown in Fig. 13.

The hollow tubular rivet 19 holds a cup-like member ||3 in fixed position on the member 14 to rotate therewith, said member ||3 serving as a ball retaining disk, the balls being confined between this member ||3 and the end wall |09. A spring 56' is mounted between the end wall of the cup-like member ||3 and a cross bar ||4 is provided on the plunger rod 44, which is adapted to enter the passage 31 to feed fluid into the valve chamber 33 in the manner previously described. The cross bar ||4 is lmade in the same manner as the cross bar 52 except that it has no projection thereon and is mounted on the plunger 44" in the same manner, and engages with the cam faces 50 in the same manner as the cross bar or follower 52', or the cross bar or follower 52, and the spring 56' causes snap action feeding movements of the plunger 44 in the same manner as does the spring 50 in Figs. 3 and 12.

It will be obvious that clockwise rotation of the cap member or housing |01 relative to the base member 22, will cause the cam member 14 to be rotated to carry the cup-like member ||3 therewith. Said cup-like member is provided with a pair of substantially diametrically opposed slots |5, into which the ends of the cross bar ||4 extend so that the cross bar will rotate in unison with the member I3. The cup-like member is provided with a peripheral flange IIB, which engages with the shoulder ||1 formed on the base member 22, the parts being so proportioned that the cup-like member i3 will have frictional engagement with the cylindrical wall portion ||8 on the base member 22" and with the shoulder ||1 through the flange ||6 when in the `groove |23 along with the disk |22.

the parts are in assembled relation, and accord- Vingly when the casing or. housing member |01 rotates in a counter-clockwise direction relative to the base member 22, this frictional drag of theV cup-like member ||3 on the base member 22" will cause the member ||3 and the cross bar H4 `to remain stationary with the member 22"- upon such counter-clockwise rotation of the housing member |01 andthe balls 86 will travel to the wider part of the passages provided for the. same betweenvthe member 14 and the member 2, thus permitting the housing and the ring-like member ||2 to rotate freely on the member 14, without any reverse movement of the cross bar ||4. Thus the movements of the cross bar ||4 will be in proportion to the movements of the housing member relative to the base member in one direction and they feeding strokes of the plunger 44 will be controlled thereby in a similar manner to that previously described in connection with the other forms of the invention.

Referring now to Figs. 17, 18 and V19, the form of the invention shown therein comprises a casing or housing |20 of a cup-like form having an integral end wall portion 2| and having a disk-like closureimember |22 secured to the casing |20 by clamping the edges thereof along the circumferential edge of the member |22, to clamp said edge in the groove |23 formed by means of the outwardly directed annular offset |24 and the inturned flange |25 provided on the casing member |20. A base member |26 is provided with an externally screw threaded portion |21 thereon for connection with any suitable device that is tobe lubricated, said base member cooperating withl the casing |20. Mounted within the base member |26 is a tubular member |28 upon which the sleeve |29 is mounted in fixed position. The disk-like member |22 is somewhat dished in form and'is provided with an inturned annular flange portion |30, rotatably mounted on the sleeve |29. The tubular member |28 is provided with a lateral annular enlargement |3| adjacent one end of the bearing sleeve |29 and with a tubular end portion |32 extending endwise therefrom. The enlargement |3| is provided with a lateral openingk |33 therein.

v A ring-like driving clutch disk |34 is mounted in fixed position on the casing |20, being clamped 'I'he driving clutch disk |34 is shown more in detail in Fig. 18 and is Vprovided with curved cam faces |35 formed in the inner edge thereof, said cam faces |35 being curved on a gradually decreasing radius of curvature from a point nearest the in- A` ner edge of the disk |34 to a point the farthest from said inner edge at the shoulders |36. A cam member |31 is provided which is made up of the cylindrical wall portion |38 having a cam surface provided on the edge portion thereof and a ange |39 extending inwardly from said cylindrical portion |38. Ball members |40 are mounted between thecylindrical wall portion |38 and the cam faces |35 of the clutch disk |34 and coil springs |4| Aare mounted between the ball members |40 and the end walls |36 provided in the recesses formed in the inner periphery of the disk 34 to provide the cam faces |35.

vReferring to Fig. 18k it will be seen that inasmuch as the surface |35 of each cam portion approaches the member |38 in a counter-clockwise direction, rotation of the disk |34 in a clockwise direction will wedge the balls |40 between the cylindrical wall portion |38 of the clutch member |31 and the cam faces |35 0f. the dSlS |34, the

balls being held in position ready for engagement with the members |38 by the springs 4|. As a result, a clockwise movement of the disk-like member |34 will immediately cause the cam member to be carried along with the member |34 in a clockwise direction.

rThe ange |39 of the lclutch member l 31 is provided with recesses in the inner periphery thereof forming the cam faces |43 extending between the shoulders |42 and |44. The cam faces |43 are inclined in an opposite direction to the cam faces |35 on the disk |34. Balls |45 are mounted between the bearing member |29 and the cam faces |43 on the flange |39, being held in engagement with the cam faces |43 and the cylindrical outer surface of the bearing member |29 by means of coil springse|46 mounted between the shoulders |44 and balls |45. As the cam surfaces !43 approach the bearing member |29 in a clockwise direction, any tendency of the cam member |31 to rotate in a counter-clockwise direction with the disk |44 will cause the balls- |45 to wedge between the cylindrical outer wall portion of the bearing member |29 and the cam faces |43 to hold said cam members |31 from such. counter-clockwise rotation.

It will accordingly be seen that a rotation relative to the base member |26 of the casing |20 in a clockwise direction will move the cam member |31 in the same direction through the same arc as the member |20 relative to the member |26, but the rotation of the casing |20 in a counter-clock- Wise direction relative to the base member |25 will not cause the cam member |31 to move at all, whereby the cam member |31 will move in a constant direction in exact proportion to the movement of the casing |20 relative to the base member |26, whether the relative movement is constant or intermittent in a predetermined direction or an oscillation. The ball and disk clutch members provided by the disk |34 and the iiange |39 are responsive to even the slightest movement of the parts to cause the cam to move with the driving disk |34 in one direction and will be held from any movement whatsoever with the driving disk |34 relative to the bearing mem-- ber |29 in the opposite direction.

The end of the bearing member |29 adjacent the lateral enlargement |3| in the tubular member |38 is bevelled as shown in |41 to permit the end portion of the member |29 to engage snugly with the bottom Wall |48 of the enlargement |3|, said wall portion |48 thus serving to hold the ball members |45 in position and locking the member |29 in fixed position between the member |23 and the wall |48. yThe washer |49, angular in crosssection, is provided upon the cylindrical portion |38 of the cam |31 to hold the balls |40 in position. The tubular member |28 is provided with transversely aligning openings |50 therein that align with the passage |5| in the base member |26, said passage |51 extending through the eX- ternally threaded tubular extension |52 on the base member |25.

The upper edge portion of the cylindrical cam portion |38 of the cam member |31 is formed so as to provide the inclined cam faces |53 that correspond to the cam faces 50 in the form shown in Figs. 3 to 11, inclusive, except that the same are oppositely inclined, the same extending upwardly from a low point |54 to an abrupt shoulder at the high point |56 thereof. Thus the cam surface comprises two gradually inclined faces |53 that lie diametrically opposite each 3. In a device of the character described, a pair of relatively movable housing and base members cooperating to provide a fluid chamber, a recipyrocable plunger rand means to produce each feeding stroke of said plunger in proportion to a predetermined amount` of relative movement of said housing and base members in a predetermined direction, comprising means tending to move said plunger in a feeding direction, a movable controlling member directly connected with said plunger and releasing the same after said controlling member has moved through a predetermined distance to permit said means to produce a feeding stroke of said plunger, and means for g positively driving said controlling member by the relative movements of said housing and base members in said direction, comprising a one-Way clutch mechanism for moving said controlling member in one direction and a one-Way clutch mechanism for holding said controlling member against reverse movement upon relative movement of said housing and base members in a reverse direction.

4. In a device of the character described, relatively movable housing and base members cooperating to provide a fluid chamber, a reciprocable plunger and means to produce a feeding stroke of said plunger comprising resilient means for moving said plunger, and controlling means for said plunger comprising a pair of relatively movable controlling elements cooperating to hold said plunger from movement under the action of said resilient means until a predetermined relative movement of said controlling elements has taken place and thereupon releasing said plunger for movement through a feeding stroke, and means for moving one of said controlling elements in unison with one of said iirst mentioned members in one direction only, comprising a one-Way driving clutch and a one-Way holding clutch.

5. In a device of the character described, relatively movable housing and base members cooperating to provide a fluid chamber, a reciprocable plunger and means to product a feeding streke of said plunger comprising resilient means for moving said plunger, and controlling means for-said plunger comprising a pair of relatively movable controlling elements cooperating to hold said plunger from movement under the action of said resilient means until a predetermined movement of said controlling elements has taken place, and thereupon releasing said plunger for movement through a feeding stroke, and means for moving one of said controlling elements in unison with one of said first mentioned members in one direction only, comprising a one-Way ball driving clutch and a one-way ball holding clutch.

6. In a device of the character described, relatively movable housing and base members, a recip-rocable plunger and means to produce a feeding stroke of said plunger comprising resilient means for moving said plunger, and controlling means for said plunger comprising a pair of relatively movable controlling elernents cooperating to hold said plunger from movement under the action of said resilient means until a predetermined movement of said controlling elements has taken place and thereupon releasing said plunger for movement through a feeding stroke, and means for moving one of said controlling elements in unison With o-ne of said rst mentioned members in one direction only, comprising a onevvay expansible driving clutch and a one-Way expansible holding clutch.

7. In a device of the character described, relatively movable housing and base members, a reciprocable plunger and means to produce a feeding stroke of said plunger comprising resilient means for moving said plunger, and controlling means for said plunger comprising a pair of relatively movable controlling elements cooperating to hold said plunger from movement under the action of said resilient means until a predetermined movement of said controlling elements has taken place and thereupon releasing said plunger for movement through a feeding stroke, and means for moving one of said controlling elements in unison With one of said first mentioned members in one direction only, comprising a one-Way expansible resilient driving clutch and a one-Way expansible resilient holding clutch.

8. The combination with a pair of relatively movabley parts having engaging surfaces, of means for lubricating said surfaces comprising a pair of relatively movable members cooperating to provide a uid tight chamber, the said relatively movable members being connected with the respective movable parts to move therewith, a reciprocable feeding member in said chamber and means for producing a feeding stroke of said feeding member after a predetermined amount of relative movement of said pair of parts comprising a movable controlling element for said feeding member, and a one-Way clutch for drivirg said controlling element by means of one of said relatively movable members When the same moves in one direction, and a one-way clutch for movement with said movable member upon movement of the same in the opposite direction.

9. The combination With a pair of relatively movable parts having engaging surfaces, of means for lubricating said surfaces comprising a pair of relatively movable members cooperating to pro-vide a uid tight chamber, the said relatively movable members. being mechanically connected with the respective movable parts to move positively therewith, a reciprocable feeding member in said chamber and means for controlling the feeding strokes of said feeding member comprising a controlling element rotatable relative to one of said relatively rotatable members, a cooperating controlling element Xed relative to said last mentioned movable member, means providing a mechanical driving connection between the other relatively movable member of said pair and said rotatable controlling element to rotate the same together in only one direction, and a one- Way clutch for holding said rotatable controlling element against movement relative to its cooperating contro-lling element in a reverse direction,

l0. In a device of the character described, a body portion having a bo-re therein, a reciprocable feeding member mounted in said body portion, a housing movab-ly mounted on said body portion, means for controlling the feeding movements of said feeding member, comprising a cam element and an element engaging said cam element, one of said elements being mounted in fixed position on said body portion, a one-Way clutch mechanism for moving the other of said elements with said housing in one direction and a one-Way clutch mechanism for holding said last mentioned element from movement with said housing in the opposite direction.

11. In a device of the character described, a body portion having a bore therein, a feeding member mounted for reciprocation in said bore,

holding said controlling element against a housing rotatably mounted on said body portion, controlling means for said feeding member comprising a cam xed on said body portion, a cross member engaging said cam and connected with said housing through mechanism comprising a one-Way ball driving clutch for moving said cross member with said housing in one direction and means for xing the same relative to said body portion during movement of said housing in the opposite direction relative to said body portion.

12. In a device of the character described, fluid feeding means comprising reciprocable means and means for reciprocating the same comprising a pair of relatively movable members forming a Vfluid tight chamber containing said fluid feeding means, and actuating means for said reciprocable means comprising a clutch member connected with one of said relatively movable members, a cam member actuated by movements of said clutch member in one direction upon slight relative movement of said relatively movable members in one direction, and means for holding said cam member against reverse movement.

13. A device of the character described comprising a pair of housing and base members cooperating to provide a fluid chamber and having means for attachment to a pair of relatively movable parts to move therewith, and fluid feeding means actuated by said members through a oneway driving mechanism, said one-Way driving mechanism comprising controlling mechanism, an expansible resilient member for driving said controlling mechanism in one direction, and means for holding said controlling mechanism from movement in the opposite direction.

14. In a device of the character described, fluid feeding means comprising reciprocable means and means for reciprocating the same, comprising a pair of relatively movable members cooperating to provide a fluid chamber containing said fluid feeding means, and actuating means for said reciprocable means comprising an expanding clutch mechanism connected with one of said relatively movable members and operating to move said reciprocable means upon relative movement of said members in one direction.

15. In a device of the character described, fluid feeding means comprising reciprocable means and means for reciprocating the same, comprising a pair of relatively movable housing and base members cooperating to provide a uid chamber, and actuating means for said reciprocable means comprising an expanding clutch mechanism connected with one of said relatively movable members and operating to move said reciprocable means upon relative movement of said members in one direction, and comprising expanding resilient means for holding said controlling mechanism from reverse movement.

16. In a device of the character described, comprising a pair of members forming a fluid chamber and having means for attachment to a pair of relatively movable parts to move therewith and fluid feeding means in said chamber actuated by slight relative movement of said members in one direction through a one-Way driving mechanism, said one-vvay driving mechanism comprising controlling mechanism, an expansible resilient member for driving said controlling mechanism in one direction, and means for holding said controlling mechanism from movement in the opposite direction.

17. In a device of the character described, a body portion having a bore therein, a reciprocable feeding member mounted in said body portion, a housing movably mounted on said body portion, means for controlling the feeding movements of said feeding member, comprising a cam element and an element engaging said cam element, one of said elements being mounted in fixed position on said body portion, expansible resilient means for moving the other of said elements With said housing in one direction, and expansible resilient means for holding said last mentioned element from movement with said housing in the opposite direction.

CHARLES J. EACOCK. CELESTE H. CLAUSER, Administratri of the Estate of Claude H. Clauser,

Deceased. 

